I need ideas to get some energy!

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My work schedual has changed..and I went in this morning at 5am-11am. Had the rest of the day to relax but I couldnt sleep. Now..I have to go to work in an hour, and im dead tired! Anyone have any ideas on how to get some energy?? Im drinking soda, but I always drink soda so its not helping..and coffee makes my stomach hurt, and I hate energy drinks!! Help!!! What do you do for energy??